HELIOS 2.0
with travel charger cycling health & performance system

❮ Coaches' Choice ❯

120+ cycling coaches recommend HELIOS to their riders. Learn more

The all-in-one cycling health and performance system.

  • Break your plateau. Proper hard days, real easy days and strength, so you get faster.
  • Ride for decades with a healthy heart. After 40, HELIOS tracks it every night, so you never ride hard on a tired heart.
  • Come back from injury without getting hurt again. Your load builds back week by week, with strength built in.
  • Lose weight, keep your power. Calories and carbs set to every ride, so you never run empty.

Size. Sizing kit recommended for best fit.

Refer to our sizing guide →

Your ring is dispatched within 2 days (after size selection).

THRIVE Coverage. Protect your new ring.

Black Friday offers. Rings for your riding group.

All rings ship in the size you pick. Different sizes? Choose the free sizing kit.

$249.99$299.00$49.01 OFF

or 4 × $62.49 interest-free with afterpay Klarna.

In stock · ships in 2 business days

30-day money-back trial. Wear it for 30 days. Not for you? Send it back for a full refund.

90-day results guarantee. Set your target with our team. Ride the plan, and if you miss it, we refund you in full.

  • Free shipping
  • CE certified
  • 2-year warranty
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Satispay
  • Shop Pay
  • Union Pay
  • Titaniumbuild
  • 120+biomarkers
  • 7–10-daybattery
  • 30-daytrial
1,247+ trusted reviews & 55,000+ riders Not ready to buy? Try THRIVE free for 30 days.Take the 2-minute quiz and get your training, nutrition and ride plan in the app. No ring needed.Take the quiz

What's Included

  • HELIOS 2.0Matt Black titanium, in your size1x
  • Travel ChargerHolds another 3–4 weeks of charge. USB-C cable included1x
  • Free Sizing KitSent first if you need it
  • MARCO, your AI coachBuilt into the THRIVE app
  • THRIVE App AccessYour training plan, fuelling plan, recovery score, ride mode and MARCO, your AI coach. First month free, then $8.99/month

Shipping, Returns and Warranty

  • Ships in 2 daysOnce sized
  • 30-day trialMoney back
  • 2-year warrantyCE certified

How it works

  1. Recover faster: THRIVE reads your sleep and HRV through HELIOS, tells you each morning whether to push or rest, and backs your recovery with personalised supplements.
  2. Plan smarter: THRIVE builds your plan around your goal and event date and adjusts it to your week, so every session moves you forward.
  3. Fuel every ride right: THRIVE sets your carbs per hour, daily targets and meals from your training, with personalised supplements to match, so you finish strong.
  4. Ride stronger: THRIVE turns your phone into your bike computer, with navigation, Climbing Mode, power and every interval graded, so you know where you're improving.
  5. Get coached every day: MARCO, THRIVE's AI coach, answers from your own data by voice or text, so you never second-guess a session.

The research behind THRIVE

  • +13.9%More power at threshold in 8 weekswith training set each morning by an HRV reading. Their 40-minute time trial got 7.3% fasterJavaloyes et al., 2019
  • ~2 minFaster over an hour-long time trialafter just three nights of extra sleepRoberts et al., 2019
  • +11.7%Higher VO2max in 9 weeksfrom mostly easy riding with a few hard days. Time to exhaustion went up 17.4%Stöggl & Sperlich, 2014
  • +29 WMore power at the end of a 3-hour ridein a 5-minute all-out effort, after 12 weeks of strength work added to ridingRønnestad et al., 2011

Complete Your System

Personalised supplement packs to aid your recovery and support your goals, delivered straight to your door. Add one with your HELIOS ring and the pack is 20% off.

Performance supplement pack

Performance

3-month supply · 4 supplements

Creatine · whey isolate · electrolytes · magnesium

$237.60$297.0020% off with HELIOS
Back from injury supplement pack

Back from injury

3-month supply · 8 supplements

Creatine · whey isolate · collagen + C · omega-3 · vitamin D · turmeric · zinc · magnesium + ashwagandha

$357.60$447.0020% off with HELIOS
Weight loss supplement pack

Weight loss

3-month supply · 5 supplements

Whey isolate · electrolytes · magnesium + ashwagandha · omega-3 · vitamin D

$213.60$267.0020% off with HELIOS

As seen in

BUSINESS INSIDERBuzzFeedGoogle NewsCBS NEWSUSA TODAY

THRIVE worksriders prove it

Luca MorettiEndurance Cycling Coach

My riders used to send me three apps’ worth of data. Now recovery, plan and fuelling sit in one place, and the plan moves before they dig a hole.

Peter HarlandCycling Coach, Masters & Gran Fondo Riders

Once my masters riders trained to their morning recovery score, they stopped forcing hard days. They turn up fresher for the sessions that count.

Hudson ClarkePerformance Nutrition Coach

Most riders under-fuel and call it discipline. THRIVE sets carbs from the day’s training, so hard days get fed and rest days stay lighter.

Lina SorensenSports Nutritionist & Endurance Fuelling Coach

Riders over 40 recover slower, and most plans ignore it. Seeing sleep and HRV each morning lets them fuel and rest for the body they have.

The edge in your recovery game

THRIVE reads your sleep, HRV, resting heart rate and skin temperature through HELIOS every night, against your own baseline. Catch the warning signs early, so tired legs never become burnout, a weakened immune system or an injury that ends your season. Wake up knowing whether to push or hold, and back your recovery with personalised supplements.

The right fuel for every ride and rest day

Get fuelling wrong and it costs you either way. Under-fuel and your power, recovery and long-term health pay for it. Eat until you’re full and the scale won’t move. THRIVE sets your calories and carbs from your body and each day’s training, and plans the fuel for every ride.

Fuel Curve (beta) predicts your energy through the day from your food log, your rides and HELIOS, so you see a dip coming and eat before it hits.

A plan that moves with your week

Stack hard sessions on tired legs and sooner or later something gives: you get sick, injured or simply stop getting faster. THRIVE builds your plan around your goal and event date in real phases: base, build, peak, taper. When a bad night or a busy day gets in the way, it moves your hard days to when you’ve recovered, and you approve every change.

THRIVE turns your phone into your bike computer: navigation, Climbing Mode, live power and heart rate, with every interval graded against its target.

Built for smarter cycling, longevity, and performance

HELIOS enhances your training by tracking your body 24/7, fuelling every ride, and helping you build fitness consistently with less risk of overtraining.

Buy HELIOS
  • Precisely calibrated sensors designed to read your heart rate, HRV, sleep and recovery, day and night.

  • Every morning you get a recovery score from your sleep, HRV and resting heart rate, and a training window for the day, so your hard sessions land on days you have recovered.

  • Rides record in ride mode, with power, heart rate and navigation on your phone. Strength and mobility sessions log in the same app and count toward your training load.

  • THRIVE AI, the model inside the app, sets your training, fuelling and recovery every morning from your recent rides and recovery. Your AI coach, MARCO, plans your rides and meals and answers by voice or text from your own data.

  • The world’s slimmest and lightest smart ring: 2.0 mm thin, 6.5 mm wide and 2.1 g of matt black titanium, so it stays comfortable on the bike, at work and asleep.

  • 7–10 days per charge, and the travel charger in the box holds another 3–4 weeks of charge, so you can leave the cable at home.

0:10 left

Unlock what’s holding your riding back with THRIVE AI

Our world-first, science-based AI system for cycling.

THRIVE AI works in unison with every part of your day: training, recovery, sleep, stress and nutrition. It finds what’s holding your riding back, whether that’s a plateau, your age, an injury or your weight, and MARCO, your AI coach, shows you the daily actions that move it most.

Eight weeks stuck at 248 W, riding 8 hours a week around a full-time job. Here’s what THRIVE AI found, what it changed, and where his FTP went.

FTP

248W

Stuck for 8 weeks

Easy rides

35%

0%100%

−5W

Recovery on hard days

48

0100

−4W

Nutrition

2 of 4on target

04

Carbs · Protein · Fat · Vitamins

−3W

Sleep

6:00h

5 h9 h

−2W

Meet MARCO, your AI coach

Here’s what he does for you.

Your recovery, read every morning

  • MARCO reads last night’s sleep, HRV and resting heart rate against your own baseline, and tells you what today’s score means for your riding.

  • Fitness, fatigue and form from every ride you’ve logged, so you know whether you’re tired from training or from everything else.

  • One call each morning, hard, easy or rest, from your recovery and recent load. Ask why and he shows you the numbers behind it.

  • The session for today, with real targets. One tap starts it on the ride screen.

  • What’s working in your recent training and what to change, from your HRV, sleep and rides over weeks, not one night.

Try MARCO free for 30 daysGet your free 30-day plan now and try THRIVE for free.

Check my recovery

Recovery 82. HRV is 24% above your baseline and you slept 70/100, so today’s sweet-spot session is on.

Recoverytoday

82RECOVERY
HRV93 ms +24%
Resting heart rate53 bpm
Sleep70 / 100
Form−3.6
Sweet-spot OKYour recovery against your own 7-day baseline.

Why am I tired?

Fatigue is 69.4 against fitness of 65.8. You’re carrying training load, not just a long week. Two easy days and you’re fresh.

Training loadlast 6 weeks

65.8

Fitness

69.4

Fatigue

−3.6

Form · mildly loaded

6 weeks agoToday

Should I rest today?

Hard day. Recovery 82 and form −3.6 mean you can absorb the planned work. Skip any bonus intensity.

Today’s call

Hard day

Recovery 82, form −3.6: you can absorb the planned work.

Easy day

Zone 2 only, keep it conversational.

Rest day

Off the bike. Mobility if you want it.

MARCO: “Hit the planned work clean. Skip bonus intensity.”

What’s my workout today?

Sweet spot, 75 minutes: 3 × 12 min at 88–93% FTP with 5 min easy between. Tap to start it.

Today’s workout

Sweet spot 3 × 12 min

75 min · intervals at 88–93% of FTP · 5 min easy between

FTP01530456075

How are my trends?

HRV is 93 ms today against a 7-day baseline of 75 ms. The extra sleep this week is working.

HRVtrend

93 ms ▲ 24%

Overnight HRV against your rolling 7-day baseline

7-day baseline 75 ms2 weeks agoToday

Draft me a training plan

What are we training for? Pick the goal, length, hours and your hard days, and I’ll build it in phases.

What are we training for?

Goal

Gran fondoRace prepBaseFTP builder

Length

46812 wk

Hours a week

681012+

Hard days

MonTueWedThuFriSatSun
Include strength
DRAFT MY PLAN

Can you tune my plan?

Two short nights, so I’ve moved Wednesday’s VO₂ max session to Friday and made Wednesday 90 minutes easy.

Plan updatetap to accept

Your HRV has sat under your baseline for 3 days. Here’s the change:

Wed · VO₂ max 5 × 4 minMoved
Wed · Endurance 90 min, zone 2Added
Fri · VO₂ max 5 × 4 minMoved from Wednesday
AcceptReject

Plan my week

8 hours this week: hard days Wednesday and Saturday, strength on Friday, rest on Monday.

This week

8 h this week · hard days Wed and Sat

MonRestTue1 hWed1.5 hThu1 hFri30 minSat3 hSun1 h

EnduranceHard dayStrength

Get me ready for my race

8 weeks to your event: 3 base, 3 build, 1 peak and 1 taper. You’re in week 6.

Race prep8-week plan

Gran fondo in 3 weeks

BaseBuildPeakTaperYou are here · week 612345678

Peak week next, then the taper: less volume, same intensity, and your fuelling plan for race day.

20 km, flat, from here

Three loops that fit. Sunnyside loop: 19.9 km, 344 m of climbing, about an hour.

Route options20 km · flat

Sunnyside loop1 / 3

19.9

km

344

m elev

1h 2m

est time

How do I climb better?

You lose the most time on the last 1.4 km at 8%. I’ve added a climbing block to your plan.

Climbfrom your saved route

4.2 km at 6.1% · 257 m up

Last 1.4 km · 8%

Where you lose time: the last 1.4 km. Two over-under sessions a week for the next 4 weeks.

Debrief my last ride

Two intervals held, the third overcooked at 275 W and the fourth faded. Start the third at target next time.

Interval reportlast ride

4 × 8 min threshold · Saturday

Target 250–262 W256#1 · Held259#2 · Held275#3 · Overcooked241#4 · Faded

MARCO: “Start #3 at target, not above it, and #4 holds.”

When should I test my FTP?

Day 9, after your recovery week. Your form goes from −3.6 today to +8.

FTP testbest day to test

Next Wednesday form +7.4

After your recovery week, fresh but not flat. Ramp test, 20 min warm-up.

FreshTueWedThuFriSatSunMonTueWedThu

Chicken burger, a porterhouse steak and a green salad

Logged: 1,423 kcal and 96 g protein so far. 1,914 kcal to go today.

Logged to your diary

“Chicken burger, a porterhouse steak and a green salad”
Chicken burger, grilled1 serving · 18 g protein
292 kcal
Beef porterhouse steak, cooked1 serving · 77 g protein
672 kcal
Green salad, mixed vegetables1 serving · 1 g protein
459 kcal

1,423 / 3,337 kcal today

96 g protein logged · 1,914 kcal to go

Plan my meals

Two meals fill 1,866 of your 1,914 kcal left, with 97 g protein: a yogurt carb bowl after the ride, then chicken pasta.

Meal plantimed around your ride

Fills 1,866 of your 1,914 kcal remaining · 97 g protein
Greek yogurt carb bowlPost-ride · glycogen + protein · P 39 g · C 167 g · F 4 g
891 kcal
Chicken tomato pastaDinner · high carb, low fat · P 58 g · C 152 g · F 10 g
975 kcal
Add to todaySwap a meal

What should I eat today?

Hard day: 3,337 kcal with 521 g carbs, 140 g protein and 77 g fat. Carbs drop tomorrow, protein stays.

Today’s fuel

3,337 kcal · hard day

Set from your body and today’s 75-minute session, never below your floor

Carbs

521 g

2,084 kcal

Protein

140 g

560 kcal

Fat

77 g

693 kcal

Rest day tomorrow: carbs drop, protein stays.

How do I fuel Saturday’s long ride?

100 g carbs before, 70 g an hour during, then 90 g carbs and 25 g protein after.

Fuel a long rideSaturday

3 h endurance 210 g carbs on the bike

3535353535350 h1 h2 h3 h

Before

100 g carbs

2 h before you roll

During

70 g an hour

35 g every 30 min

After

90 g carbs

+ 25 g protein

Can I just talk to you?

Yes. Tap the mic and talk. I answer out loud, and you can cut in any time.

Voice modelistening

MARCO
“Move tomorrow’s intervals to Friday.”
Done. Tomorrow is 90 minutes easy in zone 2, and Friday is VO₂ max 5 × 4 min. Want me to set Friday’s fuel?

Check in with me

Set: every morning at 7:00, after every ride, and Sunday at 18:00 for your week review.

Check-ins

Set once. MARCO keeps to it without you opening the app.

Every morning · 7:00

Recovery score and today’s call

After every ride

Debrief and what’s next

Sunday · 18:00

Week review and next week’s plan

Remember my knee

Pinned: no big-gear efforts on climbs for your left knee. Every plan I build takes it into account.

Memory4 pinned

Pinned by you. Every answer takes them into account.

Gran fondo in March, 160 km
Left knee: no big-gear efforts on climbs
Rides before work, never after 7 pm
Coffee before rides, not after 2 pm

Explain this screen

Ask about anything you’re looking at. I already know which screen you’re on.

Ask about any screen

HRV · last 7 nights

48 ms

“Why is this red?”
Two short nights and a hard Saturday. Your HRV is 20% under your baseline, so today is an easy day and I’ve moved Thursday’s intervals.

What MARCO does for you every day

Most riders only find out they’ve overdone it once they’re sick or injured. Every morning MARCO briefs you before you ride, from your sleep, recovery and last rides, so you see it coming. Ask him why you’re tired or what to ride today, by voice or text, and every change to your plan is shown to you first.

He sets your carbs per hour, daily targets matched to your training load and meals that fit what’s left of today, with personalised supplements to match, so you finish strong instead of fading.

Results you can trust

Backed by peer-reviewed studies and scientific research, THRIVE is built to deliver results in recovery, performance, and longevity.

HRV-guided training study

7.3%

More power over a 40-minute time trial

after 8 weeks of training set by a morning HRV reading

Javaloyes et al., 2019

Polarised training study

17.4%

Longer time to exhaustion

after 9 weeks of polarised training

Stöggl & Sperlich, 2014

In-ride fuelling trial

8%

Better time-trial performance

with glucose + fructose during the ride vs glucose alone

Currell & Jeukendrup, 2008

Recovery nutrition study

27%

More muscle fuel restored in 4 hours

with carbs + protein after a hard ride vs carbs alone

Ivy et al., 2002

Strength training study

7.8%

More power late in a long ride

5-min all-out after 185 min, with 12 weeks of heavy strength work

Rønnestad et al., 2011

263,450-person study

41%

Lower risk of death from any cause

for people who ride to work vs those who don’t

Celis-Morales et al., 2017

Free for 30 days

Still deciding? Discover THRIVE.Your plan is free for 30 days.

Take the 2-minute quiz and we build your training plan, nutrition plan and ride computer in the THRIVE app from your answers. Ride it free for 30 days, no ring needed, and see what it does for you before you buy HELIOS.

Your training plan

A multi-week plan built for your goal, your event date and the hours you have, with strength and mobility on the right days. Every session has real targets, and one tap starts it in ride mode.

Your nutrition plan

Daily calorie and carb targets set by that day’s training, with what to eat before, during and after each ride. Log meals by voice, photo, barcode or search.

Ride mode and navigation

Your phone on the bars becomes the bike computer: map, turn-by-turn navigation, Climbing Mode and your live numbers, with every ride recorded.

MARCO, your AI coach

A coach built for cycling and nothing else. Ask by voice or text and he answers from your own plan and rides, and every change he suggests is shown to you first.

Take the quiz Get your free 30-day plan now and try THRIVE for free.
THRIVE app: ride computer with live stats, training planner and fuelling plan

THRIVE vs. the alternatives.

Bike computers, fitness watches, sleep rings and coaching apps each solve one piece. THRIVE is the only one built to do all of it: your recovery, your plan, your fuelling, ride mode and a coach.

Get the  HELIOS  ring
THRIVEBike computerHead unit, HR strap, power meterFitness watchGPS sports watchSleep ringRecovery-only ringCoaching appOnline plan or coach
Recovery score
Plan built on your recovery
Fuelling plan
Live power & navigation
Climb profiles
24/7 heart rate, HRV & sleep
AI coach on your data
Strength & mobility
YesLimitedNo

Trusted by 55,000+ cyclists

Results that speak for themselves

“MARCO flagged "three days of suppressed HRV and elevated resting HR — recommend two days easy". I ignored him, did the threshold workout, blew up. Now I listen.”

CCamille DufortVerified buyer

“MARCO kept me from blowing up at the wrong moment three different times across 28 hours of riding. Fueling reminders alone earned the subscription.”

HHenrik SørensenVerified buyer

“I followed the training plan MARCO built for me for the full 90 days. PRs on three different climbs. The plan adapted weekly based on what the ring saw. No marketing claim — just my data.”

YYuki MoriVerified buyer

“Stupid as it sounds, this is the first wearable I haven't taken off in 6 weeks. No bulk, sits flat under my work glove, charges in 45 min. The MARCO morning summary is the most useful 4-second thing I read all day.”

OOwen BartlettVerified buyer

“I have sensitive skin and a chest strap was hell on every long ride. This replaces it and the readings are within 1-3bpm of my old strap on intervals.”

DDavid ChenVerified buyer

“We coach a 60-person charity ride program. Bought 6 HELIOS rings for our lead riders. Plan management has been transformed. MARCO effectively scales me as a coach. The volume discount conversation with THRIVE was easy too.”

NNgozi OnyekaVerified buyer

Frequently asked questions

Is it in stock?

Yes. HELIOS 2.0 is in stock and ships within 2 business days once your size is known.

How does sizing work?

Pick your size if you know it (US 7 to 14). If you don’t, choose the free sizing kit: we send it first, you wear your closest size for 24 hours, confirm it in the app, and your ring ships.

Do I need a bike computer or sensors?

No. HELIOS and the THRIVE app replace your bike computer, power meter and heart-rate strap. Your phone on the bars becomes the ride screen.

Does it work with Garmin or Strava?

No. HELIOS is a closed system: it connects to the THRIVE app, the Farina light and the Cliq taillight, and nothing else.

Who is Marco?

MARCO is THRIVE’s AI cycling coach. Ask him by voice or text and he answers from your own sleep, recovery, rides and fuelling, and every change he suggests is shown to you first.

Do I need the THRIVE subscription?

The app plan is what turns the ring’s readings into your recovery score, training plan, fuelling and coaching. Your first month is included, then it’s $8.99/month. Cancel anytime.

Is the app on iPhone and Android?

The THRIVE app is live on the App Store. Android is in development.

How long does the battery last?

7–10 days per charge, depending on use. The travel charger in the box charges it over USB-C and holds extra charge, so you can top it up away from a socket.

What’s in the box?

HELIOS 2.0, the travel charger, a USB-C cable and a quick-start guide.

Can I swim or shower with it?

Yes. It’s water resistant to 100 m (330 ft). Rain, showers and swimming are all fine.

What’s it made of?

Grade-5 titanium in Matt Black, brushed all over, with the sensors under a clear coat on the inside. It’s 6.5 mm wide, 2.0 mm thick and weighs 2.1 g.

What does THRIVE Coverage include?

1-year coverage: accidental damage protection and a 3-year warranty. 2-year coverage adds theft and loss protection and a 5-year warranty.

What’s your return policy?

Wear it for 30 days. If it’s not for you, send it back for a full refund.

Is my data private?

Yes. We don’t sell your data.

What if I need help?

Our team is one tap away in the app or on the support page.

Still on the fence? Chat with a HELIOS expert ›

HELIOS Reviews

4.7 out of 5

Based on 1,247 reviews

1009
170
45
14
9
Most Recent
SSam HollowayVerified buyer

Replaced my chest strap and my readiness app

Wore it for 6 weeks before this review. HR tracking is within 2bpm of my Polar H10 in every ride I've put it through — including a 4hr threshold day. The MARCO coach is the part I didn't expect to use, but I check it every morning now. Single best thing I've bought for cycling this year.

AAnna ReyesVerified buyer

Feels like a coach who actually sleeps

I've cancelled TrainingPeaks and the headspace app I never opened. Sleep tracking is more useful than my Oura was because MARCO actually says something with it. Battery genuinely lasts 7 days.

MMarcus LiuVerified buyer

Brilliant, but pairing took two attempts

Hardware is excellent. SpO₂ trending during a 3-week training block has been eye-opening. Knocking a star because pairing took two attempts — once I rebooted the ring it stuck. App could also use a way to silence MARCO for a day, not just turn him off.

JJess WhitlockVerified buyer

6.4g lighter than my last ring, and I notice

Tested side-by-side with my old Oura for two weeks. HELIOS readiness called my flat days more accurately and I never feel it through a glove. Worth the upgrade.

PPieter De WittVerified buyer

Sizing kit is a small but important detail

Three rings to try. Settled on size 11 — first one was too tight after long descents. Loving the build quality. The DLC coating still looks new after 2 months of bike maintenance grease.

RECOVERY SCORE

Your recovery, scored every morning

Every morning, THRIVE turns last night’s readings from HELIOS into one recovery score on a gauge. It’s built from your sleep, your overnight HRV and resting heart rate against your own baseline, and your training form. It tells you whether today is a hard, easy or rest day, and when in the day to train.

The same score feeds the rest of THRIVE. Your training plan, your fuelling targets and MARCO all read it, so a short night shows up in what you’re asked to ride and eat that day. Any change to your plan is shown to you first. And “why?” is one tap: ask MARCO about your score from the same screen.

RECOVERY FACTORS

What’s driving your score

A score is only useful if you know what moved it. THRIVE breaks your recovery into the factors that drive it, sleep, HRV, resting heart rate and form, each against your own baseline. HRV is green above your rolling baseline and amber or red below it; resting heart rate is coloured the other way round.

Each factor opens into its own trend: overnight HRV with a 7-day sparkline, resting heart rate, sleep, and training load as fitness, fatigue and form. You can see in seconds whether a low score came from a short night, a hard week or both.

SLEEP STAGES

Understanding your sleep stages

Your sleep is broken down into four stages: deep, light, REM and awake. Each stage does a different job, and your body uses them for growth, repair and restoration. How long you spend in each one changes with training load, stress and how late you ride.

HELIOS tracks your sleep across every stage, and THRIVE shows it as a stacked bar and a hypnogram. You also get a 0–100 sleep index, a Poor-to-Excellent quality band with one line of advice, and an ideal wake-up window worked out from your sleep cycle.

ATHLETIC AGE

Track how young your body rides

Athletic age compares your HRV and resting heart rate against age-group norms and gives you the age your body is riding at, with what’s moving it. It shows green when it’s younger than your real age, and amber or red when it’s older. Follow it as a trend over 7, 30 and 90 days, next to your riding.

SENSORS

Read from your finger, day and night

HELIOS reads your body continuously, day and night: heart rate, HRV, resting heart rate, blood oxygen, skin temperature, respiratory rate, movement and sleep. An optical heart-rate sensor, a blood-oxygen sensor, a skin-temperature sensor and a 3-axis accelerometer sit under a clear coat on the inner band, inside a matt black grade-5 titanium shell.

There’s no screen and no buttons. The ring sends everything to THRIVE over Bluetooth. It weighs 2.1 g, runs 7–10 days on a charge and is water resistant to 100 m, so it stays on through rides, showers and sleep. The travel charger in the box tops it up anywhere.

STRESS

Check your stress, then bring it down

Your stress level sits in today’s vitals, next to HRV, sleep and resting heart rate. You can also take a stress reading on demand from HELIOS whenever you want: before a race, after a long day at work, or when your recovery score looks off.

Then bring it down. THRIVE’s guided meditation sessions are built for cycling recovery, chosen by what you need (focus, recovery or pre-race), with your heart rate tracked live so you can watch it settle.

YOUR PLAN

Base, build, peak, taper

Answer six questions: your goal, event date, experience, hours, schedule and whether you want strength. MARCO builds a multi-week plan in real phases: base, build, peak and taper. Every session has real targets (zones, power, intervals), and strength and mobility land on the days they fit.

The monthly calendar shows every planned and completed session, colour-coded by phase, with fitness, fatigue and form tiles. Open any session for its structure, power profile and target zones, and one tap starts it as a live ride or strength session.

PLAN UPDATES

You approve every change

When your week changes (a bad night, a missed session, a big unplanned ride, a new schedule), THRIVE works out what should move and shows you the change and the reason. You apply it, keep the plan, or take a rest day. Swaps, moves, skips, intensity and the week’s focus all work the same way.

It happens once a day, in the morning, off the bike. Nothing changes mid-ride, and the plan is never changed silently.

TRAINING PLANNER

Every session in one calendar

Every planned and completed session sits in one calendar: rides, strength and mobility, so you can read your week at a glance. Each week shows its TSS, hours and how many sessions are done, and fitness, fatigue and form show where the block is taking you.

RIDE MODE

Your bike computer, on your phone

Ride mode turns the phone on your bars into your bike computer: the map, turn-by-turn navigation and every live number, including speed, distance, heart rate from HELIOS, power, cadence and elevation. Rides record straight into your history and training load, with nothing else to mount or charge.

Power and cadence come from one calculation: HELIOS heart rate together with speed, gradient, and rider and bike mass. That gives you an accurate, consistent reading to pace and train by, with no power meter, cadence sensor or chest strap. Your heart rate zones show live on the ride screen, turns are spoken aloud, and maps keep loading offline.

CLIMBING MODE

Every climb, mapped as you ride

Load a route and THRIVE detects the climbs on it. As you approach each one, ride mode switches to a climb profile: gradient, distance left, elevation gain and your climb power, with voice alerts. You always know how much climb is left and what you’re putting out, so you don’t blow up halfway.

Plan a route by tapping waypoints that snap to bike-friendly roads, or import any GPX or TCX file. Every route runs with full navigation and Climbing Mode.

INTERVAL REPORT

Every interval, graded

Load a structured workout and training mode shows the current interval’s target (zone, power, heart rate, cadence) with a segment timeline and live feedback on whether you’re hitting it. On the road or on the trainer.

After the ride, every work interval is graded against its target: held it, overcooked it or faded. The splits are saved per interval, and MARCO reads them to tell you what to do next.

MARCO

A coach who knows your data

MARCO is THRIVE’s own coach, built for cycling and nothing else. Ask by voice or text and he answers from your own data: last night’s sleep and recovery, HRV, your last rides, training load, goals and fuelling. He knows which screen you’re on, so “why is this red?” needs no explanation.

He answers from THRIVE’s coaching library: peer-reviewed sports science and the methods of leading cycling coaches, physiotherapists and pro riders, with every study checked before it goes in. He also takes action: building your plan, planning a ride, changing your week and logging food, and you accept or reject each change.

YOUR GOAL

Built around what you’re chasing

Tell MARCO what you’re chasing (raise your FTP, climb faster, sharpen your sprint, build your base or get race-ready) and your event date. Your plan, fuelling and recovery are set to get you there. Change the goal or the date and he rebuilds the plan around it.

MORNING BRIEF

Briefed before you ride

MARCO briefs you in one screen: how you recovered, today’s session, what to eat for it and the conditions outside. Tap through to keep the conversation going.

FUEL PLAN

Every gram, timed to the ride

Every planned ride gets its own fuelling plan: what to eat before it, how many carbs per hour to take during it, and what to take on after, worked out from that session’s duration and intensity and your body.

Your regulars (gels, drink mix, bars) are one-tap quick-add tiles, so intake is logged as you go and the day’s targets update.

DAILY TARGETS

Calories and carbs, matched to your load

THRIVE sets your daily calorie and carbohydrate targets from your body and that day’s training using the Energy Availability model from sports science: basal metabolic rate plus exercise energy plus daily activity, adjusted for your goal. A hard day gets more, a rest day gets less, automatically.

Log meals by describing them, snapping a photo, scanning a barcode or searching. There’s a floor so your target never drops into under-fuelling: it’s fuelling for training, never dieting.

SUPPLEMENTS

Personalised to your training

Take the 2-minute quiz and THRIVE matches your stack to your training, recovery and goal. Prefer to choose? Pick a set pack (Performance, Back from injury or Weight loss) or add any supplement on its own.

THE DIFFERENCE

The gains he coaches toward

7.3%

Riders whose training was set by a morning HRV reading improved their 40-minute time trial by 7.3% over 8 weeks. THRIVE reads your HRV every night and sets the day around it.

Javaloyes et al., 2019
8%

Taking glucose plus fructose during the ride gave an 8% better time trial than glucose alone. Your fuel plan sets carbs per hour for every ride.

Currell & Jeukendrup, 2008
~2 min

Three nights of extended sleep made riders about 1.9 minutes faster over an hour-long time trial. HELIOS tracks every night’s sleep, stage by stage.

Roberts et al., 2019

FUEL CURVE · BETA

See your energy dip before it hits

Fuel Curve is a predicted energy line for your day, built from your food log, your rides and HELIOS. It shows whether you’re steady, heading for a dip or on a surge, and tells you what to do next in plain words, with a time: dip likely around 3:35 PM, so eat about 30 g of carbs by 3:15 to stay level.

It sits on your Home screen and in Nutrition, and the 7-day view shows how steady your energy has been all week, with your ride days marked. On the bike, your ride screen shows when your next fuel is due. Fuel Curve is in beta: it’s a prediction, not a measurement.

RIDE FUEL

Finish strong instead of fading

Every planned ride gets its own fuelling plan: what to eat before it, how many carbs per hour to take on the bike, and what to have after, worked out from the session’s length and intensity and your body. You see how much to carry and when to take each gel and bottle.

Out on the ride, your ride screen shows when your next fuel is due. Feeling flat? Tap “I’m fading” and it tells you how many carbs to take now. Your regulars (gels, drink mix, bars) are one-tap logs, so the day’s targets keep up.

DAILY TARGETS

Lose weight without running on empty

Set a weight goal and THRIVE sets your daily calorie and carb targets for it, using the Energy Availability model from sports science: your basal metabolic rate, plus what your training burns, plus your daily activity. Big training days get more and rest days get less, so the fuel is there when you ride hard.

Eat too little on a hard day and the ride suffers, then the hunger hits later. Targets that move with your training let you lose weight without cutting the fuel your riding needs. Every meal you log shows against the day’s target, and the week view shows how each day went.

LONG-TERM HEALTH

Train hard without under-fuelling

Training hard on too little food is called low energy availability. Sports science links it to lost power and slower recovery, and over time to problems with bones, hormones and immunity. Riders chasing weight are most at risk, and it’s easy to miss.

THRIVE puts a floor under every daily target, so it never drops into under-fuelling, even on a weight goal. Your energy availability shows on the Nutrition screen every day, worked out from what you eat and what your training burns. It’s fuelling for training, never dieting.

FOOD LOG

Log a meal in seconds

Log food four ways: snap a photo and the app recognises the meal and proposes realistic portions, scan a barcode, search the USDA database, or just say what you ate. Whole dishes work, and nothing is added until you’ve checked it.

Your regulars (the gel, the banana, your usual bottle mix) are one tap. And when you don’t know what to eat, ask MARCO to plan the rest of today’s meals to fit what’s left of your targets, around your training.